2120057 has 2 divisors, whose sum is σ = 2120058. Its totient is φ = 2120056.

The previous prime is 2120051. The next prime is 2120093. The reversal of 2120057 is 7500212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2119936 + 121 = 1456^2 + 11^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120057 - 2¹² = 2115961 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2120051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060028 + 1060029.

It is an arithmetic number, because the mean of its divisors is an integer number (1060029).

2^2120057 is an apocalyptic number.

It is an amenable number.

2120057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120057 is an equidigital number, since it uses as much as digits as its factorization.

2120057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 140, while the sum is 17.

The square root of 2120057 is about 1456.0415516049. The cubic root of 2120057 is about 128.4643170818.

Adding to 2120057 its reverse (7500212), we get a palindrome (9620269).

The spelling of 2120057 in words is "two million, one hundred twenty thousand, fifty-seven".